linux-kernel - USB 2.0 (EHCI) keeps crapping out (3.2.29)

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <50D91733.2040000@gmail.com>
Date:	Mon, 24 Dec 2012 22:02:11 -0500
From:	Logan Rathbone <loganrathbone@...il.com>
To:	linux-kernel@...r.kernel.org
Subject: USB 2.0 (EHCI) keeps crapping out (3.2.29)

*** NOTE:  Kindly CC me directly if you reply to list since I'm not an 
LKML subscriber. ***

Running vanilla 3.2.29 (Slackware 14.0).  I also had this issue on 
2.6.37.6 and *possibly* 2.6.33.x, but I don't recall.

Every now and again (could be every few days, could take a couple of 
weeks... depends.) USB 2.0 stops working.  My scanner as well as certain 
mass-storage devices that are USB-2.0 compatible fail to function all of 
a sudden.

With the said mass storage devices, I get lots of errors like this in my 
logs:

hub 1-0:1.0: unable to enumerate USB device on port 3

Devices that have previously been mounted and accessed successfully 
begin giving input/output errors when I try to ls them.

rmmod'ing ehci_hcd and modprobe'ing it again resolves the issue until it 
occurs again.

It *could* be a hardware problem, but it seems odd that unloading & 
reloading the module instantly makes it work perfectly again.

Via USB 1.1/2.0 controller from circa 2002-2003.

If anyone has any ideas, please let me know...

logan@...ancomp:~$ /sbin/lspci |grep -i usb
00:10.0 USB controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 
Controller (rev 80)
00:10.1 USB controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 
Controller (rev 80)
00:10.2 USB controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 
Controller (rev 80)
00:10.3 USB controller: VIA Technologies, Inc. USB 2.0 (rev 82)

logan@...ancomp:~$ cat /proc/cmdline
auto BOOT_IMAGE=Slackware ro root=802 nohz=off highres=off 
clocksource=jiffies acpi_enforce_resources=lax vt.default_utf8=0
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/